What is Tissue fluid?
Why serum does not clot?
What is the measure of normal systolic pressure?
What is the measure of normal diastolic pressure?
What is 'angina pectoris'?
What is cardiac arrest?
Which blood vessels have only single layer?
Capillaries have a single layer. Capillaries consist of a single layer of epithelial cells, called the endothelium tunic (tunica intima).
What is heart attack?
What is systole, diastole and pulmonary circulation?